Determination of transformation products formed during water disinfection by chromatographic techniques coupled to quadrupole time-of-flight mass spectrometry

Resumo

Emerging contaminants is one of the most interesting topics in the scientific community nowadays. Due to the inefficiency in WWTP for eliminating compounds from waters, contaminants go through all the barriers and reach ending waters for re-use. That is the reason why since the last years, the presence of several substances in environmental sources such as waters, is increasing and becoming a human health threat. In this thesis, studies about the degradation of emerging contaminants were performed. In degradation processes, regarding the method, the compounds are transformed into other new structures, with unknown toxicity activity. The elucidation of these new substances, as well the parameters about their toxicity, is also evaluated in this work.